10520306 has 8 divisors (see below), whose sum is σ = 15808044. Its totient is φ = 5250960.

The previous prime is 10520291. The next prime is 10520309. The reversal of 10520306 is 60302501.

It can be written as a sum of positive squares in 2 ways, for example, as 5640625 + 4879681 = 2375^2 + 2209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10520306² = 221353676667272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10520309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3065 + ... + 5516.

Almost surely, 2^10520306 is an apocalyptic number.

10520306 is a deficient number, since it is larger than the sum of its proper divisors (5287738).

10520306 is an equidigital number, since it uses as much as digits as its factorization.

10520306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 10520306 is about 3243.5021196232. The cubic root of 10520306 is about 219.1170256443.

Adding to 10520306 its reverse (60302501), we get a palindrome (70822807).

The spelling of 10520306 in words is "ten million, five hundred twenty thousand, three hundred six".